# cast.[framework](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework).[messages](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages).TracksInfo

class static

Tracks information.

## Constructor

### TracksInfo

new
TracksInfo()

## Properties

### activeTrackIds

(non-null Array of number or undefined)

The track IDs that should be active.

### language

(string or undefined)

Language for the tracks that should be active. The language field will
take precedence over `activeTrackIds` if both are specified.

### textTrackStyle

(non-null [cast.framework.messages.TextTrackStyle](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages.TextTrackStyle) or undefined)

The text track style.

### tracks

(non-null Array of non-null [cast.framework.messages.Track](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages.Track) or undefined)

The tracks information.